Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 806 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — density, dissolving, capillary action, light bending, air pressure, push-back, air resistance or condensation. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of the layers (b) how much of each liquid (c) the order of pouring
2. 2.🚁 Dropped from a raised hand, does a stone fall slowly or fast? (a) falls slowly (b) falls fast
3. 3.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the size of the bowl”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a sheet of white paper (d) a magnet
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is the one thing we change. (a) False (b) True
7. 7.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) a magnet (c) cling film (d) a big bowl
8. 8.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
9. 9.💧 Which change is this: ice becoming water? (a) freezing (b) condensation (c) melting (d) evaporation
10. 10.🧺 Do we need a mirror for the paper helicopter? (a) needed (b) not needed
11. 11.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
12. 12.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals lose water to air (d) petals are magnetic
13. 13.🔍 Which is the odd one out? (a) a coin (b) a feather (c) an ice-cream stick (d) a ping-pong ball
14. 14.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a strip of cloth (d) a glass marble
15. 15.True or false: safety scissors is not needed for the paper helicopter. (a) False (b) True
16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
18. 18.🧺 Which of these is needed for the water cycle bowl? (a) cling film (b) turmeric powder (c) a mirror (d) yeast
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a battery cell
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a battery cell (d) turmeric powder
21. 21.True or false: a glass marble floats on water. (a) True (b) False
22. 22.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
23. 23.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the way we turn it is the one thing we change. (a) True (b) False
24. 24.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
25. 25.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) True (b) False
26. 26.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a mirror (d) a battery cell
28. 28.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
29. 29.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
30. 30.True or false: a glass marble falls slowly through the air. (a) False (b) True
31. 31.🧺 Which of these is needed for the paper helicopter? (a) a battery cell (b) a balloon (c) a strip of paper (d) yeast
32. 32.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves
33. 33.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) sticky tape (d) a magnet
34. 34.True or false: water with food colour is needed for the density tower. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a medicine dropper (b) a fridge magnet (c) a drinking straw (d) a vacuum cleaner
36. 36.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) in the water layer (d) at the very bottom
37. 37.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
38. 38.🔮 Predict: you blow up a balloon. What fills it? (a) sand (b) air (c) smoke (d) water
39. 39.🚁 Why do we clip a paper clip to the bottom of the helicopter? (a) to make it magnetic (b) to make it fall slower (c) to weigh down the bottom (d) to stop the spinning
40. 40.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we measure it (b) we keep it the same (c) we change it

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